Radio oscillation generator



R. R. BEAL.

RADIO OSCILLATION GENERATOR.

APPLICATION FILED JAN.5| 1920.

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R. R. BEAL.

RADIO OSCILLATION GENERATOR.

APPLICATION FILED 1AN.5. 1920.

Patented Mar. 28, 1922.

'2 SHEETS-SHEET 2.

To all whom, it may concern:

Ii -l1, Figure 22 oiiirizo STAT-E3 :BALEH a. BEAL, or r A iio PATENT RADIO OSCILLATION GENERATOR.

' Specification of Letters Patent. Patnted B131. 28, 1922.

Application filed January 5, 1920. Serial No. 349,473.

Be it known that I, RALPH R. BEAL, a citizen of the United States, and a resident of Pale Alto, county of Santa Clara," and State of California, have invented a certain new and useful Radio Oscillation Generator, of which the following is a specification.

The invention relates to generators of electrical oscillations for the purpose of radlo communication and more particularly to a generator in whichv an arc is produced in a transverse magnetic field and in a hydrogen atmosphere. I

An object of the invention is to provide a radio oscillation generator of the are type having an eflicient' magnetic circuit and a ;rea dily accessible are chamber.

Another object of the invention is to pro vide a magnetic circuit in which the leakage flux is reduced to va minimum. This is of decided advantageon shipboard, where the magnetic leakage would produce. adeleteriousefl'cct upon the ships compass.

' A "further object of the invention is to provide an e'flicient and compact generator.

The invention possesses other advantageous features, some of which, with'the foregoing, will be set forth at length in the following ClQSCIlPtlOl1,Wh6I0 I shall outline in full that form of the invention which I have selected "for illustration in the drawings accompanying and forming party of the present specification. In said drawii'igs -I' have shown one specific form of oscillation 'gcneratorof my invention, but itis to be understood that I donotlimit myself to such form, since the invention, as expressed fin the claims,

I may be embodied in a plurality of forms. Referri ngto said drawings I v m Figure l. is a vertical section of the; generator in closed positioii taken on the line with the upper section reniovec. In ordcr'to obtain an'efiicient iiiagiietic circu1t, it is necessary to reduce theleakage fiuii to'a minimum, This is accomplished in the present structure by placing the magnaming coils on both sides' of the chamber in which the are burns and preferably above and below the are chamber. It is also necessary to provide a return magnetic circu thaving'a minimum reluctance, to keep the leakage at a minimum, and this is accomplished by reducing the length of the return mag netic circuit to as small a value as possible,

and by keeping its cross section substantially equal to the cross section of the magnetic poles. By making the length of the return circuit as short as possible, the magnetizing coils are brought close together and the are chamber between the coils is extremely shallow The are chamber thus becomes so shallow that it is not possible to provide a door or hand hole through the easing into 'the chamber, which is necessary for the purpose of nspectionand cleaning of the arc chamber and its. contents. :In the present construction, however, I overcome the necessity of a door or hand hole, by forming the generatorin two sections, preferably superposed, hinged together, so that by raising the, upper section, ready access may be had to the-arc chamber. The upper portion ot the are chamber is formed in the upper section and the lowerportion is formed in the lower section, sothat when the upper section is closed, a closed. are chamber, is provided and when itis raised, the entire arc chamber is exposed. Y m

The generator. is formed-in two sections, the lowersection 2 and the upper section 3, which is preferably hinged at 4; to the lower section, so that it may be readily moved. The sections are preferably cylindrical in shapeand preferably comprise steel shells 5 6 which form the return magnetic circuit.

The upper Sll ell il is closed at the-top with a steel counterpoise 7 to which is secured the upper .magnet. pole 8.. Surrounding the :magnet pole 8,i s a magnet coil 9 which is held in place by the cover plant l2, secured to the counterpoise 7 by the bolts 13. Secured to and. disposed below the cover plate il2 is an inppercooliiig plate l la, having do presslons therein, which with the surlave' of cover plate formal chai'inel o passage 15' through which .water is circulated for the purpose ofkeeping the arc Cl'liilIllDGl. cool and preventing a large flow of heatto the magnet zing winding ,9. The upper cooling plate 14; forms the upperwall-,ot' the arc chamber. '7

When the upper sectioni's closed,it rests directly on the lower section, forming a close joint therewith and providing a return magnetic path of low reluctance. The lower shell 6 is closed at the bottom by the steel coufltdrp'oise l5 to which the low I magnet pole 16 is secured. This lower p e is preferably longer than the up or pole and is surrounded by a magnet windi glorified in three coils 17-1819, all of t 'e coils in the generator being preferably connected in series. Bearing against the upper coil 17 is a lower closing plate 21 and engaging the lower closing late is a lower coollng plate 22 which is ormed to provide acceding water channel 23 having the same purpose as the channel 15. Each oooli water channel 15 and 23 is ovided with inlet and outlet fixtures, so .water may be circulated through the channels. The lower cooling plate 22 forms the lower wall of the arc chamber.

Secured to thelower section is. a carbon electrode holder 24, in which the carbon electrode orcathode 25 is disposed-and thro ti ih which it extends into the arc chamber. e lowersection is also vided with an anode holdet26, suitably insulated from the section and supporting theonode 27. lathe present construction, the electrodes are disposedat right angles to each other-and their inner ends lie betwesn'the magnet poles, so thatthe-are is subjected to a strong transverse magnetic field. The-cooling-plates are provided with do ressions which fcrmchannels in-the are c amber-i1: which the-electrodes are disposed.

The hydrogen atmosphere is produced in the arc chamber by introducingrliquid hydrocarbon into the chamber. anged on the upper section is a hydrocarbon liquid feed cup 28 from which the li uid drips into a duct 29 extendin through t e upper magnet pole. The c amber is also provided with an exhaust pipe81, to permit the dis charge of the exhausted atmosphere.

By hinging the wholeupper section of the generator, I not only am able to obtain ,a very highly elficient magnetic circuit, but also provide for extreme andread'y' accessibility to the arc chamber. "The electrodes are isposed in the lower section of the generator, so that their osition is fixed and they may be observed 111 their operative position by tilting back the upper section. I

I claim:

1. A radio oscillation generator, comprising a shell of ma tic material, lates of ma etic materia closing the .e s of the she I, magnet poles in contact with said plates, m get windings mirrounding said poles ande ectrodes between which an arc may be formed disposed the magnetic field between said poles.

2. A radio osoillation generator comprisin a steel shell, steel plates closing the'ends 0 said shelhmagnet poles in contact with said plates an isposed within said shell with the inner ends of thepoles .a'djaoent each other, magnet windings within the forming ar eturnspaced. apart, a

shell ,and iflmlmding'the poke-and electrodes havin their ends disposed between the inner enfs fthe poles 53.13 radio oscillation nerator comprising a cylindrical steel she 1, steel plates closing the eads the cylindrical shell, alined magnet poles arranged within the shell and in engagement with said .platos, magmt windings surrounding said poles, "an arc chamber in the shell into which the poles project and electrodes in said chamber having their inner-ends disposed between said 4. A radiooscil htion rotor comprising a cylindnieal steel she ,stoel plates closing the ends of the shell, dined magnet poles in the shell 0 'ng suid plates, the inner endsef the huge; spaced apart, magnet sol-mun rig said 'les, an arc chamber in the shell into whie the inner ends of the poles extendmooling-mediumeircelating es l i. between the are chamber-andthe'wi" *andelectrodes in said chamber havin their inner ends disposed between the .po

5. A radio oscillation generator comprising a shell o'fmagnetic material, t poles securedto opppgite "sidesof said "fiell and disposed within e shelh'magnet windings on said poles,ean are chamber formed in said shellbetween said windings, cooling plates forming the walls of sai chamber provided with passe es three which.- ter may 'becircula ,.means, r producing a hydrogen still here in saidphnmber and electrodes in sai chamber between which an arc may beittormed, said electrodes being disposed so that the arc will be formed between the magnet, poles.

6. A radio. oscillation generator comprising a shell of magnetic material formed in two separable sections, a magnet ole in each section in ma etio contact with the section, a magnetiwmdh g on each pole and an arc chamber between said sections.

7 A Who oscillat on generator, comprising a shell of, magnetic material formed in two separable sections, a magnet. and a magnet winding in eachsectron, emagnet pole being magnetically con nmd to 'the section, an arc chamber wall.;disposed in one section and an arc chamber wall dis posed .in other motion. 8. A radlo Oscillation generator comprismg a shell ofam gn m material formed in two separable the shell I etlqcarcggamagmt e arranged, 1mm, .sectn U .twot'poles lz ing ali'ndd and havipg ands W wlnd ng sum mg each'y lo amdT'. tes dispooed'mfiiw nt the windings ,and an'arc chamber which may be opened by raising the upper section.

9. A radio oscillation generator comprising a steel shell formed in two separable superposed contacting sections, an arc chamber in said shell at the juncture of said sections, and means within the sections for producing a magnetic flux across said chamber. V

10. A radio oscillation generator comprising a lower steel section, an upper steel section hinged thereto, the two sections forming a closed shell, a magnet pole in each section magnetically connected thereto, a magnet winding surrounding each pole, and electrodes mounted in the lower section and having their ends disposed between said magnet poles.

1.1. A radio oscillation generator comprising a lower steel section, an upper steel section hinged thereto and forming with the lower section a closed shell, a magnet pole in each section magnetically connected thereto, said poles being in alinement and having their inner ends spaced apart, a magnet winding surrounding each pole, an arc chamber in said shell, having its upper wall secured to the upper section and its lower wall secured to the lower section, and electrodes mounted on the lower section and having their ends disposed in said chamber between the magnet poles.

In testimony whereof, I have hereunto set my hand at Palo Alto, California, this 29th day of December, 1919.

RALPH R. BEAL. 

